Telegraph Machine
“On 6th January 1838 Samuel Morse’s revolutionary telegraph system was demonstrated for the first time at the Speedwell Iron Works in Morristown, New Jersey. Within a few years of the initial demonstration a series of telegraph lines would be strung across the United States and the Atlantic, completely changing the nature of long distance communication” – Read Full Article:
Image courtesy of Wikimedia commons user: Jorge Royan
DC Input Voltage Vs. Typical RF Output DC In 17 meters 20 meters 30 meters 40 meters 9.5V 4.4W 4.5W 4.9W 4.0W 10V 4.8W 5.0W 5.1W 4.5W 12V 6.5W 7.0W 7.8W 6.2W 14V 8.5W 9.5W 10W 8.5W Size 5 ½... Read more
The FX-4C is a new SDR transceiver developed by BG2FX. It covers all of the major HF bands, and includes wide-band receive capabilities. Its small size (1 lb) and built-in speake... Read more
Military grade Tablet with integrated RTK Positioning powers Forensic Mapping, Collision Reconstruction, Land Surveying etc. Running Android, you can install all the available Play Store app... Read more
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